Improvement in spindle-bolsters



UNITED STATES PATENT OFFICE.

JAMES BARNES, OF HOLYOKE, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND JAMES WOODHOUSE, OF SAME PLACE.

IMPROVEMENT IN SPlNDLE-BOLSTERS.

Specification forming part of Letters Patent No. 135,960, dated February 18, 1873.

To all whom it may concern:

Be it known that I, JAMES BARNES, of H01- yoke, in the county of Hampden and State of Massachusetts, have invented a new and Improved Spindle-Bolster, of which the followin gis a specification:

My invention consists of a long tubular cup with a hole in the bottom, in which the spindle is fitted oil-tight, and a metal cap in the bolster-rail, within which the upper end of the cup, which turns with the spindle, has a bearin g, and said cap has atubular extension from the hole through which the spindle passes,

fitting into the cup at the top.

Figure 1 is a sectionalelevation of my improved bolster; Fig. 2 is a horizontal section; and Fig. 3 is a side elevation of the cup.

Similar letters of reference indicate corresponding parts. A

A represents a deep tubular oil-cu p, through the bottom of which the spindle B passes and fits oil-tight at C, so that the cup turns with it. E is a cap with a tubular part, F, fitted in the bolster-rail G, and'extending through it, or thereabout. The upper part of the oil-cup A extends up in this part F to the top, and fits snugly to form the bearing. H is a long tubular extension of the cap from the hole in the cup, through which the spindle passes down along the spindle, and fitting it snugly nearly to the bottom of the oil-space in the cup. For a short distance along the lower part, this extension is slitted at I, so that it can be adjusted to hug the spindle by aslight springing action, to prevent the oil 'from' being thrown out at the top by the action of the spindle when in rapid motion, or by any jarring of the spindle-supports. K is a slight collar at the base of the extension H, resting on the top of the oil-cup; and L is a rib or flange on the inside of the cup at the top, both of which are to prevent oil from escapin g over the top of the cup to the bearingsurfaces too rapidly; but they allow it to pass in sufficient quantity for economical lubrication, the oil being thrown up to the top by the jarring and tumbling of the machine. The flange L arrests any splashes thrown up the surface of the cup. The tube H also prevents the oil from flowing over the top when the cup A is filled, which is done by pouring the oil into the concavity at the top of the cap, so as toflow down through the tube H, which is not so tight in the upper part as to prevent, and in the lower part, where it springs against the spindle, the oil escapes through the slits I; but the cap may be raised up to put in the oil, if preferred.

The cap may screw into the rail, if preferred, and be adjusted to bear on the top of the cup with more or less force.

Having thus described my invention, I claim as new and desire to secure by Letters Patent In combination with the cup A, designed to revolve with the spindle, the cap E, provided with an oil-receiving cavity on its upper side, and with the outer tubular extension F fitting in the rail, and the inner extension H forming the bearing for the spindle, said parts having the collar and flange K L, as shown and described.

JAMES BARNES. Witnesses:

E. W. CHAPIN, ELM. HANKINSON. 

